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Food safety and quality
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| Flavouring |
DL-Methionine |
| Synonym(s) |
DL-2-Amino-4-(methylthio)butyric acid;2-Amino-g-(methylthio)butyric acid;2-Amino-4-(methylthio)butanoic acid |
| Latest JECFA evaluation |
2004 (Session 63) |
| Status of specification |
Full |
| Information required |
|
| Chemical name |
2-Amino-4-(methylthio)butaoic acid |
| JECFA number |
1424 |
| CAS number |
59-51-8 |
| FEMA number |
3301 |
| COE number |
|
| FLAVIS number |
17.014 |
| Molecular weight |
149.21 |
| Chemical formula |
C5H11O2NS |
| Physical form/odour |
White crystalline platelets or powder; Characteristic aroma |
| Solubility |
Soluble in water; Insoluble in ether |
| Solubility in ethanol |
Soluble |
| Boiling point (°C) |
|
| Assay min % |
98% |
| Acid value max |
|
| Refractive index |
|
| Specific gravity |
|
| Other requirements |
mp: 281° |
| ID Test |
MS |
| Spectrum |
 
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![](../typo3conf/ext/dyna_fef/download.php?dfile=/work/htdocs/disseminationtypo3/web/fileadmin/user_upload/jecfa/img/<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/1424.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/1424.gif" width="60px;"></a><br>&dname=<a href="http://www.fao.org/fileadmin/user_upload/jecfa/img/1424.gif" target=_blank><img src="http://www.fao.org/fileadmin/user_upload/jecfa/img/1424.gif" width="60px;"></a><br> "Download")
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